An excerpt of the long story in the link : THEY DO EXIST Jack and Harold learned that some experimental jet aircraft were being stored at the base salvage/scrap-yard. These particular aircraft had already been decommissioned/declassified, and were parked directly outside, and NOT in a hangar. ................... "My gosh! Those are Flying Saucers! Those things really do exist!". There, parked outside on a taxi-way near the base scrap-yard, were four flying wing discs, measuring 20, 40, 70 and 116 feet in diameter. ...................... Because they were the last remaining of their model, the Master Sergeant of the Non-Commissioned Officer's Club telephoned the Adjutant General's Office for permission for Polaroid photographs to be taken.......................The Master Sergeant stated to Jack that he was not sure what these aircraft were for, but thought they might be some sort of "test" aircraft. The General's Office suggested that Jack use higher quality official Air Force photographs available at the Adjutant General's library at MacDill. .....................Jack was issued for his article, the highest security clearance ever given to any civilian publisher due to his prior work with SAC/TAC/Navy/Army bases. Under armed military guard, Jack was personally shown literally hundreds of official U.S.A.F. photographs of these aircraft in formation flight, on the tarmac, and was shown portions of motion picture footage of these aircraft in flight. Jack was allowed to select those photographs best suited for the up-coming NCO Club newsletter article, and obtain additional detailed information concerning the discs. ...............

Yeah, last time I looked when in the AF back then, the Master Sergeant of the NCO Club called all the shots about secret military aircraft. As for the highest clearance granting - just plain BS, there's still such a thing as NEED TO KNOW.... Lastly, all the pictures in the link are computer graphics generations. Apologize for the length of the excerpt - tried to cut as much as possible but one has to get a sense of just how poorly documented the site's recounts are.